Alcohol-burner.



H. V. SMITH.

ALCOHOL BURNER.

APPLICATION FILED IBB. 14.71912.

150441,893. Patented 001;. 22, 1912.

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A TTHNEY UNITED STATES PATENT OFFICE.

HENRY V. SMITH, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR OF ONE-HALF TOEUGENE H. H. SMITH, OF BRIDGEPORI, CONNECTICUT.

ALCOHOL-BURNER.

To all whom 'it may concern.'

Be it known that I, HENRY V. SMITH, a citizen of the United States,residing at Bridgeport, county of Fairfield, State of Connecticut, haveinvented an Improvement in Alcohol-Burners, of which the following is aspecification.

This invention has for its object to provide a simple, inexpensive,easily controlled and thoroughly efficient alcohol burner adapted forgeneral use and especially adapted for use as a chaling dish lamp.

With these and other objects in view I have devised the novel alcoholburner of which the following description in connection with theaccompanying drawing is a specification, reference characters being usedto indicate the several parts:

Figure 1 is a plan view showing my novel lamp as in use; Fig. 2 a viewpartly in side elevation and partly in vertical section, showing theconstruction and operation of the lamp; Fig. 3 a section of the burneron an enlarged scale on the line 3-3 in Fig. 1; and Fig. l is a detailview illustrating the filling opening and the cap therefor.

10 denotes a frame which may be of any ordinary or preferredconstruction and which supports a tabular reservoir 11, which may be ofany suitable design or configuration, and which is shown as inclosingthe burner.

12 denotes sockets secured to the upper side of the reservoir whichreceive and support the detachable standards 13 of a carrying ring 14for a cooking utensil.

The burner comprises an outer cup 15, an inner cup 16 and a cap 17. Theouter cup is carried by a bar 1S which is secured to the under side ofthe reservoir and contains a duct 19 leading from the reservoir to thecup, a needle valve 20 being provided to control the flow of alcohol.Nithin cup 15 and loosely fitting therein is the inner cup 16. The innercup is made shorter than the outer cup and is enough smaller than theouter cup to leave a thin space between the cups through which a film ofalcohol may rise. The cover fits closely over the outer cup, extendsabove the outer cup and is provided above said cup with air holes 21 andwith a dome-shaped top which is provided with a central flame opening22. 23 de- Specication of Letters Patent.

Application led February 14, 1912.

Patented Oct. 22, 1912.

Serial No. 677,448.

notes a filling opening in the reservoir which is provided with aswinging cover 24.

In use, when the valve is opened the alcohol will pass through theductand into the outer cup and will rise in the thin space between theinner and outer cups and pass into the inner cup, as indicated by thearrows in Fig. 3. The upper portion of the cap now becomes a mixingchamber where the alcohol vapor becomes mixed with air entering throughholes 21 and forms a highly inflammable mixture which will ignite andproduce an intensely hot flame when a match is applied to the opening.If preferred, holes may be provided in the bottom of the inner cup, asat 25, and a washer, as 26, (see Fig. 3) may be placed under said cup.The effect will be to cause a small quantity of alcohol to pass into theinner cup the instant the valve is opened, vapor will rise therefrominto the mixing chamber and the burner may be lighted without waitingfor the alcohol to rise up between the cups and over the top of theinner cup.

Having thus described my invention I claim:

1. An alcohol burner comprising an outer cup, an inner cup shorter thanthe outer cup and of a diameter to leave a thin space between said cupsand a cap provided with a ame opening and air holes above the outer cupwhereby a mixing chamber is formed.

2. An alcohol burner comprising an outer cup, an inner cup shorter thanthe outer cup and of a diameter to leave a thin space between said cups,for the purpose set forth, and a dome-shaped cap having a flame openingand air holes above the outer cup.

3. A lamp comprising an outer cup, a bar supporting said cup andprovided with a fuel feeding bore communicating with the interior ofsaid cup, an inner cup shorter than the outer cup and of a diameter toleave a thin space between said cups and a cap having air openings abovethe outer cup and a central flame opening.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY V. SMITH. Witnesses Gr. P. I'r'rIG, WALTER H. BULLABD.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

